Steam-hammer.



T. M. SHEARER.

STEAM HAMMER.

APPLI UATION FILED JULY 21, 1911. 7 1,026,002. Patented May 14, 1912.

2 SHEETS-SHEET 1.

Witnesses Inventor 1 fl' by Attorneys v Patented May 14, 1912.

2 SHEETS-SHEET 2.

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THEODORE MICHAEL SHEARER, OF OAKLAND CITY, INDIANA.

STEAM-HAMMER.

To all whom it may concern Be it known that I, THEODORE M. SHEARER, a citizen of the United States, residing at Oakland City, in the county of Gibson and State of Indiana, have invented a new and useful Steam-Hammer, of which the following is a specification.

This invention relates to steam hammers, and is particularly adapted for use in dressing large and small drilling bits employed in the drilling of oil and gas wells or the like, although it may be used for various other purposes.

The object of this invention is to provide a steam hammer which is pivoted to turn in a vertical plane in a suitable frame, which frame is revoluble horizontally, and to provide a sliding adjustment of the steam hammer on the frame up and down an inclined slideway or guide, thereby permit ting either a radial or a downward blow or thrust of the ram by swinging the steam hammer in a vertical plane, and also permitting the steam hammer to be swung in a horizontal plane.

Further objects will be evident from the hereinafter description.

To the above end there is employed the novel combination, arrangement and construction of parts as hereinafter described and as shown in the accompanying drawings, in which similar reference characters indicate similar parts, and in which Figure 1 is a side elevation of the invention as used for spreading or stoving a bit; Fig. 2 is a front elevation thereof, parts broken away; Fig. 3 is a section on the line 33 of Fig. 1, parts being removed; Fig. 4 is an elevation of the specially constructed cylinder head and guides for the ram; Fig. 5 is a plan and side elevation of one of the guides.

Referring specifically to the drawings, there are shown at 11 a pair of parallel and vertical masts, suitably spaced apart and preferably composed of iron piping, which have at their lower ends a turn-table 13 mounted pivotally on a base 14. Balls 15 which run in suitable races between the said turn-table 13 and base 14 provide suitable anti-friction means therebetween. At their upper ends the said masts are joined by a yoke 11 having a vertical trunnion 32 upstanding therefrom and in alinement with the turn-table 15, which trunnion is pivoted in a suitable support 12. The steam ham- Specification of Letters Patent.

Application filed Ju1y 21, 1911.

Patented May 14, 1912.

Serial No. 639,842.

mer being'carried by the masts which are supported on the turn table 13, permits the hammer to readily swing about the vertical axis of the turntable.

To the bottom end of the respective masts 11 is secured by suitable clamps 28 a pair of spaced angle iron slideways, 16, which have one of their respective flanges facing each other, and the other flanges disposed inwardly, as is made clear by reference to Fig. 3. These slideways 16 extend forwardly and upwardly, or are inclined outwardly, and at their free or outer ends are secured by a pair of braces 26 to the respective upper ends of the masts 11 by suitable clamps 27. The above forms the revolving frame and the guide which is inclined outwardly from the center thereof.

Between the pairs of laterally spaced slideways 16, is mounted the cylinder 18 of the hammer to revolve in a vertical plane therebetween and thus swing the ram-head 33 in a vertical plane. The said cylinder 18 is also slidable up and down in the said guide. The means for so mounting the cylinder comprises a special head 23 for the lower end of the cylinder which has a block 25 projecting therefrom, the said block having laterally projecting wrist pins or trunnions 24, and boxes 36 slidable between the pairs of slideways 16, through which boxes the said wrist pins or trunnions project to be pivoted therein. The cylinder 18 is provided with a steam chest 17 having an inlet 19 for the connection of a suitable steam line, and although this invention is described as utilizing steam for power, it is understood that compressed air or other fluid can be employed in its stead. The ram or piston-rod 40 passes out of the head 23 of the cylinder and through the block 25, and to the outer end thereof is secured a suitable ram-head 33. The piston rod is guided between the side members 22 which have their rear ends spread as shown at 22 to straddle the sides of the block 25. The said portions 22 of the guides 22 are disosed between the block 25 and the respective oxes 36, and the trunnions 24 pass through holes 22 therein. The portions 22 of the said guides are also secured to the block 25 in any suitable manner (not shown) to retain the same in position. To the forward ends of the said guides 22 is secured a guide head 34 through which the piston rod passes. A suitable hand lever 21 is pivoted to one of guides 22 and connected to the valve rod 20' protruding from the steam chest 17, and extends out beyond the sides of the frame. This lever 21 is manipulated to operate the steam valves within the steam chest 17 and thus actuate the ram-head as desired.

Clamping plates 31 are secured outside of the slideway 16 and threaded ends 24* of the trunnions 24, and have grooves 31 therein into which the outer edges of the flanges of the slideways 16 fit. Nuts 37 are screwed on the outer ends of the trunnions 24, and by tightening same the plates 31 are tightly clamped against the sides of the slideways 16, and by loosening same the boxes 36 can be slid up and down in the slideways 16 to a suitable position, thereby permitting the cylinder and accompanying parts to be carried up and down the slideways 16. A bar 41 is pivoted to the guide head 34 and ex tends upwardly over and between a yoke 38 joining the upper ends of the slideways 16. This bar is used as a means to swing the ram head 33 to various positions and also to hold it in any desired position.

In operation, when slid to the lower end of the inclined guide, the cylinder 18 may be swung to an approximately horizontal position to allow the forward action of the ram head, and by tilting the same by means of the bar 41, various inclinations or angles can be given the cylinder to "ary the direction of the blow. As shown in Fig. 1, the ram head is shown in a position for acting on the point of a bit 29 placed 011 an anvil 30 to spread or stove same. By sliding the cylinder upward on the guide the same can be swung vertically to give a downward blow. As the guides can be swung horizontally the ram can therefore be carried from one side of the bit to the other by swinging same. Owing to the spaced condition of the pairs of angle irons 16 and masts 11, the cylinder and accompanying parts are freely swingable therebetween, and the blow of the ram is always away from the axis of the turn-table.

It will be seen that the objects aimed at have been attained in a convenient and efficient manner, and that the construction is both light and rigid. It is also understood that various alterations in the construction of the invention can be resorted to within the scope of the appended claims without departing from the spirit of the invention.

Having described my invention, what. I claim as new is:

1. In a support for steam hammers, a horizontally rotatable frame including inclined slideways, and a ram operating mechanism slidably and pivotally mounted between the slideways.

2. In a support for steam hammers, a horizontally rotatable frame including inclined slideways, a ram operating mechanism slidably and pivotally mounted between the slideways, and means for clamping the said mechanism at various positions on the slideways.

3. In a support for steam hammers, a pair of vertical masts mounted to turn horizontally, slideways secured to the said masts and inclined therefrom, a ram operating mechanism slidably and pivotally mounted between the slideways, a yoke joining the upper ends of the slideways, and a bar connected to the ram operating mechanism and passing over the yoke to manipulate the said mechanism.

4. In a support for steam hammers, a pair of vertical masts mounted to turn horizontally, slideways secured to the said masts, boxes slidable in the slideways, and a ram operating mechanism trunnioned between the said boxes.

A support for a steam hammer comprising a pair of vertical masts, a turn-table for the said masts, slideways secured to the lower ends of the said masts and inclined outwardly, braces connecting the outer ends of the said slideways and the upper ends of the said masts, and a ram operating mechanism slidably mounted between the said slideways and pivoted to turn vertically therebetween.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

THEODORE MICHAEL SHEAR-ER. lVitnesses Gno. C. STEWART, ALBERT L. Bowsnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

